MistyK,
The A designation on both the 301 and 401 is to indicate the they were made in the Anderson, SC plant.
On the 301 there is no difference between the ones with the A and those without as all 301s were made at the Anderson plant. This may also apply to the 401s.
Both take the slant shank attachments and will work with most of the attachments. The exception is the slant shank walking foot. It works well on the 401, but doesn't work well on the narrow feeddogs of the 301.
Cathy
Originally Posted by
MistyK
What is the difference between the machines 301 and 301A and a 401 and 401A? Also what is the difference between the same model 301 and 301A. I hope that makes sense. Are there attachments that can be bought for them. I have been looking at some older machines. Apparently these are good machines to buy.